Front fluted drawing roll for gill boxes



Y 1930- s. HADFIELD ET AL 1,784,140

FRONT FLUTED DRAWING ROLL FOR GILL BOXES 7 Filed April 24, 1929 Fig 1 INVENTORS L? I WMLZ 4 1 ATTORNEY.

Patented Dec. 9, 1930 SAMUEL HADFIELD AND GUSTAVE J. BUOKLITCH, OF LAWRENCE, MASSACHUSETTS FRONT FLUTED DRAWING ROLL FOR GILL BOXES Application filed April 24, 1929. Serial No. 357,849..

This invention relates to gill boxes such as are used particularly in preparing wool fiber for worsted spinning.

As now made, these gill boxes include a frame and two sets of rolls between which are fallers which carry pins. Back rolls and front rolls are of the fluted type and the front or delivery rolls travel very much faster than the back feed rolls, while the fallers travel at a rate of speed intermediate between them. This invention has reference particularly to the top front delivery roll. As now made the bottom front delivery roll is fluted and positively driven and around it passes an endless apron made of leather or some similar material. The top front delivery roll is also fluted and carried by a shaft which is held in bearings which are slidable in guide- 2 ways, the shaft being held down and in engagement through the leather apron with the bottom roll by compression springs carried by screws on each of which rides a wheel or nut by which the spring pressure can be adjusted.

In this construction, as the shaft revolves in two bearings and also under two saddles all of which are outside the fluted surface of the roll, it is found necessary to have four oil holes to reduce the friction and the power necessary to drive the machine.

This arrangement is objectionable because with these four oil holes the adjoining parts become covered with oil and there is always danger that it will come in contact with the roving which passes between the top and bottom front and back rolls and it frequently works out and drops on the floor.

The purpose of this device is to improve the lubrication where it is most needed, to reduce the number of oil holes, and to locate those which are used, outside of the flutes andstill to keep the working oil film under cover as much as possible.

We accomplish this by using a fixed shaft and forming the flutes on a shell roll which revolves around part of this shaft. To further improve the construction, we provide oil receptacles which connect with conductors or channels which run along the surface of the shaft in such a location that as the fluted shell roll revolves, it carries oil from this channel down undereneath where the real pressure comes and where lubrication is most needed.

By this construction, we greatly improve the lubrication and reduce wear on the parts, and much less power is required to operate the machine because only a light shell roll is lll eing driven instead of a solidshaft and r0 I As the leather apron transmits the power, the wear on this apron is greatly reduced and its life is prolonged.

In the drawings, Fig. 1 is a side elevation partly in section showing the front and back fluted rolls together with the fallers and trumpet of a well known type ofgill box.

Fig. 2 is a section looking from the right in the direction of the arrows on line 22 of Fig. 3. 1

Fig. 3 is a section looking from the left in the direction of the arrows on line 3 3 of Fig.1, some of the parts being broken away to show the construction. a

Fig. 4 shows a slightly different shape of oil-channel. p Y i In the drawings, A represents the frame of a gill box including substantially vertical parts such as 1 and a horizontal part 2.

B, B represent the back feed rolls shown as of the fluted type and as carried by the shafts 10 and 11 in a well known manner.

0, C, C represent the fallers, while R is the roving and T the trumpet all of a well known represents the, positively driven fluted bottom front delivery roll shown as integral with a shaft 20 revoluble in bearings such as 21 in the part 1 of frame A and driven by any suitable means which it is not necessary to shows v This bottom delivery roll is shown as having two fluted sections 23 and 25 with a smooth section 24-between them.

Around ro'll F, as shown, pass the two endless aprons G, G. Such aprons also pass over a take up roll or shaft 27. r

H, H represent vertical guideways in the parts .1, 1 of frame A and in these guideways are slidable the shaft carriers K, K. 1 Shaft L is fixed in position at each end by means of a set screw 40 which passes through a suitable screw hole in a carrier K into a recess 140 in shaft L whereby the shaft is prevented from turning and is kept in the same relative position at all times.

At the top of roll L positioned outside of the ends of the flutes and preferably under the saddles P, P, we provide the oil recesses 42 and 43 and preferably we connect these by extending downward therefrom around and along the surface of shaft L, the channels 44 and 45.

Preferably these extend over and down towards the back and then connect so that the fluted shell roll M when it revolves will be lubricated along its entire inside surface 49.

Preferably, as shown, we use adjoining each end 48 of our shell roll M a half bearing of babbitt or other suitable material 51 to receive whatever wear there is from each end 48 of the shell roll M as it revolves.

lVe also locate the channels 44 and 45 on the back of shaft L, as shown in Fig. 1, so that the inside surface 49 of the shell roll will come in Contact with the oil in a channel before it reaches the bottom point where the pressure of the saddles P are exerted to the greatest extent and where it is therefore most desirable to reduce the friction.

As shown, these saddles P, P are each spring pressed by means of a spring 55, the pressure of which can be regulated by means of a hand wheel or nut 56 carried by a screw 57 held by the part2 of frame A.

To conduct oil into the recesses 42 and 43, we preferably provide oil holes 52 and 53 exextend over the oil channels and confine the oil therein.

2. The combination in a gill box having a frame, back feed rolls, fallers, a. positively driven, fluted bottom front delivery roll, and an endless apron which passes around said delivery roll; of two guideways fixed to the frame; with shaft carriers slidable in the guideways; a horizontal shaft fixed to said carriers, said shaft having at the top oil recesses and oil channels which extend from said recesses down around and along the surface of said shaft; a fluted shell roll revoluble on the shaft between the oil recesses; and spring means to exert downward pressure on said shaft.

3. The combination in a gill box having a frame, back feed rolls, fallers, a positively driven horizontal fluted bottom front delivery roll, and an endless apron which passes around' said delivery roll; of two guideways fixed to the frame; with shaft carriers slidable in the guideways; a horizontal shaft fixed to said carriers; a fluted shell roll revoluble on said shaft between spring pressed saddles; and said spring pressed saddles which engage the shaft outside the shell roll.

' SAMUEL HADFIELD.

GUSTAVE J. BUCKLITCH.

tending from the top of the shoe part 58 of the saddle P down through the bearing 51 so as to enter one of the oil recesses 42 or 43.

The collars 59, 59 betweenthe shaft carriers K, K, and shell roll H hold that roll in place.

As shown in Fig. 4, we may use oil channels 65, which extend from recesses-such as 62 down and towards each other until they join at a point 66.

WVe claim:

1. The combination in a gill box ha-vinga frame, back feed rolls, fallers, a positively driven, fluted bottom front delivery roll, and an endless apron which passes around said delivery roll; of two guideways fixed to the frame; with shaft carriers slidable in the guideways; a horizontal shaft fixed to said carriers, said shaft having at the top oil recesses and oil channels which extend from said recesses down around and along the surface of said shaft; a fluted shell roll so revoluble on the shaft between the oil recesses as to carry oil down from said channels; and spring pressed saddles which engage the shaft outside the shell roll, said saddles having oil holes which connect withithe oil recesses and bearings for the shell roll which 

